/* -*- mode: C -*-  */
/* 
   IGraph library.
   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard street, Cambridge, MA 02139 USA
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA 
   02110-1301 USA

*/

#include "igraph_types.h"

int FUNCTION(igraph_array3,init)(TYPE(igraph_array3) *a, long int n1, long int n2, 
				 long int n3) {
  int ret;
  ret=FUNCTION(igraph_vector,init)(&a->data, n1*n2*n3);
  a->n1=n1;
  a->n2=n2;
  a->n3=n3;
  a->n1n2=n1*n2;
  
  return ret;
}

void FUNCTION(igraph_array3,destroy)(TYPE(igraph_array3) *a) {
  FUNCTION(igraph_vector,destroy)(&a->data);
}

long int FUNCTION(igraph_array3,size)(const TYPE(igraph_array3) *a) {
  return (a->n1n2) * (a->n3);
}

long int FUNCTION(igraph_array3,n)(const TYPE(igraph_array3) *a, long int idx) {
  switch (idx) {
  case 1: return a->n1;
    break;
  case 2: return a->n2;
    break;
  case 3: return a->n3;
    break;
  }
  return 0;
}

int FUNCTION(igraph_array3,resize)(TYPE(igraph_array3) *a, long int n1, long int n2, 
				   long int n3) {
  int ret=FUNCTION(igraph_vector,resize)(&a->data, n1*n2*n3);
  a->n1=n1;
  a->n2=n2;
  a->n3=n3;
  a->n1n2=n1*n2;
  
  return ret;
}

void FUNCTION(igraph_array3,null)(TYPE(igraph_array3) *a) {
  FUNCTION(igraph_vector,null)(&a->data);
}

BASE FUNCTION(igraph_array3,sum)(const TYPE(igraph_array3) *a) {
  return FUNCTION(igraph_vector,sum)(&a->data);
}

void FUNCTION(igraph_array3,scale)(TYPE(igraph_array3) *a, BASE by) {
  FUNCTION(igraph_vector,scale)(&a->data, by);
}

void FUNCTION(igraph_array3,fill)(TYPE(igraph_array3) *a, BASE e) {
  FUNCTION(igraph_vector,fill)(&a->data, e);
}

int FUNCTION(igraph_array3,update)(TYPE(igraph_array3) *to, 
				   const TYPE(igraph_array3) *from) {
  IGRAPH_CHECK(FUNCTION(igraph_array3,resize)(to, from->n1, from->n2, from->n3));
  FUNCTION(igraph_vector,update)(&to->data, &from->data);  
  return 0;
}
